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Question: 31 15 a rigid horizontal bar be is supported as...

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31 (1.5%) A rigid horizontal bar BE is supported as illustrated below. After the load P is applied, point E moves a displacement δΕ upward and the axial strain in the bar AB is ε a. What is the elongation/contraction in the bar AB b. Find the position c of the fulcrum F c. Calculate the elongation/contraction and the associated axial strain in the bar CD d. Does the value of force P need to be known beforehand to solve the problem? Explain why or why not. CD Symbol Unit [mm] | [mm] | [mm] | [mm] | [。] |-| [ ] | [N] 2,000 mrm Value1,250 1,875 1,000 60 2,000 5,000

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